.a  { background: url(img/l_ue.gif) no-repeat fixed 100% 100% }
.a_2  { background-image: url(img/ue.gif); background-repeat: repeat-x; background-attachment: fixed; background-position: left bottom }
.a_3  { background-image: url(img/r_ue.gif); background-repeat: no-repeat; background-attachment: fixed; background-position: left bottom }
.b  { background-image: url(img/lft.gif); background-repeat: repeat-y; background-attachment: fixed; background-position: right top }
.b_3  { background-image: url(img/rgt.gif); background-repeat: repeat-y; background-attachment: fixed; background-position: left top }
.c  { background: url(img/l_sita.gif) no-repeat fixed 100% 0 }
.c_2  { background-image: url(img/sita.gif); background-repeat: repeat-x; background-attachment: fixed; background-position: left top }
.c_3  { background-image: url(img/r_sita.gif); background-repeat: no-repeat; background-attachment: fixed; background-position: left top }